How to write a "reader-friendly" sessionInfo() to text file

Question

I would like to save the output of "sessionInfo()" to a text file. Using "write()" failed because "list() cannot be handled by 'cat()'". I then tried "save()" with ascii = T but the resulting file is not really helpful.

I would like to have an output like this in a text file. Any easy, straightforward way to do this?

Answer 1

Capture the screen output into a character vector and use writeLines.

writeLines(capture.output(sessionInfo()), "sessionInfo.txt") 

Answer 2

‘sink’ diverts R output to a connection. 

sink("sessionInfo.txt") sessionInfo() sink() 

sessionInfo.txt:

R version 3.0.2 (2013-09-25) Platform: x86_64-pc-linux-gnu (64-bit)  locale:  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C                [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8      [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8     [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                   [9] LC_ADDRESS=C               LC_TELEPHONE=C             [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C         attached base packages: [1] stats     graphics  grDevices utils     datasets  methods   base       loaded via a namespace (and not attached): [1] compiler_3.0.2 tools_3.0.2